Yes, the guilds are preserved. All the guilds from the worlds that are getting merged will exist on a new world. This is also confirmed by a CM on the forum
Characters will keep their names, stats, belongings and quest flags. Guilds will be preserved so they will also exist on the new game world.
Update on the Question Revival V contest - winnersMay 18, 2024
Interview with Solkrin - lead of the Customer Support team at CipSoftDecember 20, 2023
Become a TibiaQA Supporter!May 09, 2023